Tungsten Crucible in Thermal Evaporation
Tungsten crucible used in thermal evaporation is a high-temperature evaporation container applied in vacuum coating systems. It provides stable containment for metals, oxides, and functional materials under continuous heating conditions, enabling uniform and controllable evaporation output for stable thin film deposition.
CTIA’s tungsten crucible is fabricated from high-purity tungsten material (W≥99.95%) through powder metallurgy sintering and precision machining processes, suitable for various vacuum thermal evaporation and functional thin film deposition systems.
Why Is Tungsten Crucible Used in Thermal Evaporation?
Thermal evaporation processes require evaporation source components with excellent high-temperature stability and chamber cleanliness. CTIA’s tungsten crucible offers the following features for continuous high-temperature operation, stable evaporation performance, and film purity control in vacuum coating equipment:
(1) Excellent high-temperature resistance: Tungsten has a melting point of approximately 3420°C, suitable for continuous high-power evaporation conditions;
(2) Good vacuum stability: Low vapor pressure at elevated temperatures helps maintain vacuum chamber cleanliness;
(3) Reliable structural stability: Maintains dimensional stability during repeated heating and cooling cycles;
(4) Excellent thermal conductivity: Promotes uniform heating of evaporation materials and improves evaporation efficiency;
(5) High material purity: Reduces impurity release and improves coating purity and adhesion consistency;
(6) Good thermal shock resistance: Suitable for intermittent and continuous evaporation operations.
Applications of CTIA’s Tungsten Crucible in Thermal Evaporation
CTIA’s Tungsten crucible is mainly applied in the following processes:
(1) Metal thin film evaporation (Al, Ag, Au, Cu, Ni);
(2) Optical coating deposition, including anti-reflection coatings, reflective coatings, and filter coatings;
(3) Semiconductor conductive layer and functional layer deposition;
(4) OLED (Organic Light Emitting Diode) device evaporation;
(5) Photovoltaic and functional thin film fabrication;
(6) Research vacuum evaporation experiments.
Specifications of CTIA’s Tungsten Crucible
Specifications of CTIA’s tungsten crucible is shown below:
CTIA GROUP has specialized in tungsten crucible manufacturing for over 30 years and can optimize crucible dimensions, wall thickness distribution, and thermal profile design according to thermal evaporation system structures and process requirements, providing integrated solutions from material preparation to precision machining.
For any inquiry, please contact tungsten crucible manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: www.tungsten.com.cn
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